My main objective is a bag that I can get the camera with the 17-85 attached out in the shortest amount of time possible. I also prefer a backpack that you can sling forward akin to the Tamrac model 5747 (pictured) But i'm also open to other suggestions. I also tried the Lowepro Stealth reporter 100 AW, but its top opening zipper isn't quite wide enogh to take out the XT fast. You kind of have to dig for it. Overall, i'm just looking for suggestions on other fast loading packs.